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Diseases

Diseases
4
Aug

Bunt

1. In this disease, a few grains in an ear are affected, the infection being either partly or wholly. The symptoms appear first as minute black Streaks bursting through the glumes at the ripening.
2. If the infected grain is crushed between the fmgers, a black powdery mass of spores emerges. The causal organism of the disease is Tilletia barclayana.
3. The is that develops inside the grain is filled with spores, which are spherical and dark, with a spiny epispore. The spore germinates and produces sporadic. These produce secondary sporadics in large numbers.

File Courtesy: 
ICAR NEH, Umiam
4
Aug

Narrow brown leaf spot

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
http://www.insectimages.org/browse/detail.cfm?imgnum=5390516
4
Aug

Leaf smut

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
http://www.ipmimages.org/browse/detail.cfm?imgnum=5390514
4
Aug

Leaf smut

4
Aug

False smut

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishnaveni (DRR)
4
Aug

Sheath rot

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishnaveni (DRR)
4
Aug

Udbatta disease

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
CRRI
4
Aug

Sheath blight

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishnaveni (DRR)
4
Aug

Leaf scald

4
Aug

Rice Brown spot

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishnaveni (DRR)
4
Aug

Rice blast

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishna Veni (DRR)
4
Aug

Rice blast

3
Aug

Rice yellow dwarf

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishnaveni (DRR)
3
Aug

Rice tungro virus.

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishna Veni (DRR)
3
Aug

Bacterial leaf streak.

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
http://www.sciencephotolibrary.com/images/download_lo_res.html?id=670017710
3
Aug

Bacterial leaf blight

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Dr.Krishna Veni (DRR)
3
Aug

Grain discolouration

1. Discoluration of rice grains. is becoming a major problem in certain varieties of rice both in upland and lowland conditions. It redUces the germination, causes decay of seedlings, produces chaffy grains and lowers the consumption quality of the grains.
2. The disorder may be limited to individual grains, but in severe cases almost the entire panicle including the rachis becomes discoloured.

File Courtesy: 
ICAR NEH, Umiam
3
Aug

Bunt

1. In Bunt disease, a few grains in an ear are affected, the infection being either partly or wholly. The symptoms appear first as minute black Streaks bursting through the glumes at the ripening.
2. If the infected grain is crushed between the fmgers, a black powdery mass of spores emerges. The causal organism of the disease is Tilletia barclayana.
3. The is that develops inside the grain is filled with spores, which are spherical and dark, with a spiny epispore. The spore germinates and produces sporadic. These produce secondary sporadics in large numbers.

File Courtesy: 
ICAR NEH, Umiam
3
Aug

Narrow brown leaf spot

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
http://www.insectimages.org/browse/detail.cfm?imgnum=5390516
2
Aug

Leaf smut

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
http://www.ipmimages.org/browse/detail.cfm?imgnum=5390514
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